| Official Name: | Obornjača |
| Settlement Type: | Village (Selo) |
| Pushpin Map: | Serbia Vojvodina#Serbia#Europe |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: |  Serbia |
| Subdivision Type1: | Province |
| Subdivision Type2: | District |
| Subdivision Type3: | Municipality |
| Unit Pref: | Imperial |
| Population As Of: | 2002 |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 45.7719°N 19.8697°W |
Obornjača (Serbian: Оборњача) is an uninhabited village in Serbia. It is situated in the Bačka Topola municipality, in the North Bačka District, Vojvodina province.
In Serbian the settlement is known as Obornjača (Оборњача) and in Hungarian as Nagyvölgy. There is a nearby settlement with the same name, but it administratively belongs to the neighbouring municipality of Ada (See: Obornjača (Ada)).
In 1975, the village had about 40 houses and 220 inhabitants.[1] According to 2002 census, the population of the village numbered only 2 inhabitants, both of them ethnic Hungarians. According to 2011 census, the village was uninhabited.[2]